| 911 Emergency | | 911 |
| Animal Services | | 925-779-6989 |
| Antioch Marina | | 925-779-6957 |
| Antioch Police (non emergency) | | 925-778-2441 |
| Antioch Rapid Transit/BART | | 925-676-2278 |
| AT&T Broadband (Cable) | | 1-800-945-2288 |
| Bus Schedule/Tri Delta Transit | | 925-754-4040 |
| Chamber of Commerce | Antioch | | 925-757-1800 |
| City Water Service/Antioch | | 925-779-7060 |
| City Water Service/Oakley | | 925-625-3798 |
| City Water Service/Pittsburg | | 925-252-4940 |
| County Assessor's Office | | 925-313-7400 |
| Lauritzen Yacht Harbor | | 925-757-1916 |
| Lenhart Alarm & Security | | 925-754-1884 |
| Oakley Disposal (Garbage) | | 925-757-7660 |
| Pacific Bell/Business | | 811-7355 |
| Pacific Bell/Residential | | 1-800-310-2355 |
| Pacific Gas & Electric | | 1-800-743-5000 |
| Pleasant Hill Bayshore Disposal (Garbage) | | 925-685-4711 |
| Sutter/ Delta Hospital | | 925-779-7200 |
| Wall Street Journal | | 800-975-8609 |
